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The working principle of the magnetic card electric meter Wiring diagram of the magnetic card electric meter How to read the degree of the magnetic card electric meter
The magnetic card electric meter has various anti-theft functions and It has an elegant shape, small size, light weight and convenient installation. It has another name called IC card electricity meter. The outside is composed of a base meter, a main control microcontroller chip, a digital display, a relay switch, an ESAM module and an IC card interface.
The working principle of the magnetic card electricity meter
The function of the magnetic card electricity meter is mainly realized by two function systems: the measurement system and the Single-chip processing system.
1. Measurement system: It is a single-phase electronic energy meter.
2. The single-chip processing system is: voltage sampling is realized by a voltage divider, current sampling is realized by a sampling resistor, and the voltage and current signal after sampling is converted into a power signal by a multiplier After the V/T is changed, the timer function is advanced, and the pulse signal is input into the single-chip microcomputer system.
Magnetic card meter wiring diagram
How does the magnetic card meter read degrees
